155 lines
4.8 KiB
C
155 lines
4.8 KiB
C
/****************************************************************
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The author of this software is David M. Gay.
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Copyright (C) 1998 by Lucent Technologies
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and
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its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of Lucent or any of its entities
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not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
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IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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****************************************************************/
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/* Please send bug reports to David M. Gay (dmg at acm dot org,
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* with " at " changed at "@" and " dot " changed to "."). */
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#ifndef GDTOA_H_INCLUDED
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#define GDTOA_H_INCLUDED
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#include "arith.h"
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#include <stddef.h> /* for size_t */
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#ifndef Long
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#define Long int
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#endif
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#ifndef ULong
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typedef unsigned Long ULong;
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#endif
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#ifndef UShort
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typedef unsigned short UShort;
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#endif
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#ifndef ANSI
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#ifdef KR_headers
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#define ANSI(x) ()
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#define Void /*nothing*/
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#else
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#define ANSI(x) x
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#define Void void
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#endif
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#endif /* ANSI */
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#ifndef CONST
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#ifdef KR_headers
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#define CONST /* blank */
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#else
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#define CONST const
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#endif
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#endif /* CONST */
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enum { /* return values from strtodg */
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STRTOG_Zero = 0,
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STRTOG_Normal = 1,
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STRTOG_Denormal = 2,
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STRTOG_Infinite = 3,
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STRTOG_NaN = 4,
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STRTOG_NaNbits = 5,
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STRTOG_NoNumber = 6,
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STRTOG_Retmask = 7,
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/* The following may be or-ed into one of the above values. */
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STRTOG_Neg = 0x08, /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */
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STRTOG_Inexlo = 0x10, /* returned result rounded toward zero */
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STRTOG_Inexhi = 0x20, /* returned result rounded away from zero */
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STRTOG_Inexact = 0x30,
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STRTOG_Underflow= 0x40,
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STRTOG_Overflow = 0x80
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};
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typedef struct
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FPI {
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int nbits;
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int emin;
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int emax;
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int rounding;
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int sudden_underflow;
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} FPI;
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enum { /* FPI.rounding values: same as FLT_ROUNDS */
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FPI_Round_zero = 0,
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FPI_Round_near = 1,
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FPI_Round_up = 2,
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FPI_Round_down = 3
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt,
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int *sign, char **rve));
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extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
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int mode, int ndigits, int *decpt, char **rve));
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extern void freedtoa ANSI((char*));
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extern float strtof ANSI((CONST char *, char **));
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extern double strtod ANSI((CONST char *, char **));
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extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*));
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extern char* g_ddfmt ANSI((char*, double*, int, size_t));
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extern char* g_dfmt ANSI((char*, double*, int, size_t));
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extern char* g_ffmt ANSI((char*, float*, int, size_t));
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extern char* g_Qfmt ANSI((char*, void*, int, size_t));
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extern char* g_xfmt ANSI((char*, void*, int, size_t));
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extern char* g_xLfmt ANSI((char*, void*, int, size_t));
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extern int strtoId ANSI((CONST char*, char**, double*, double*));
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extern int strtoIdd ANSI((CONST char*, char**, double*, double*));
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extern int strtoIf ANSI((CONST char*, char**, float*, float*));
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extern int strtoIQ ANSI((CONST char*, char**, void*, void*));
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extern int strtoIx ANSI((CONST char*, char**, void*, void*));
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extern int strtoIxL ANSI((CONST char*, char**, void*, void*));
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extern int strtord ANSI((CONST char*, char**, int, double*));
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extern int strtordd ANSI((CONST char*, char**, int, double*));
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extern int strtorf ANSI((CONST char*, char**, int, float*));
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extern int strtorQ ANSI((CONST char*, char**, int, void*));
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extern int strtorx ANSI((CONST char*, char**, int, void*));
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extern int strtorxL ANSI((CONST char*, char**, int, void*));
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#if 1
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extern int strtodI ANSI((CONST char*, char**, double*));
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extern int strtopd ANSI((CONST char*, char**, double*));
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extern int strtopdd ANSI((CONST char*, char**, double*));
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extern int strtopf ANSI((CONST char*, char**, float*));
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extern int strtopQ ANSI((CONST char*, char**, void*));
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extern int strtopx ANSI((CONST char*, char**, void*));
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extern int strtopxL ANSI((CONST char*, char**, void*));
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#else
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#define strtopd(s,se,x) strtord(s,se,1,x)
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#define strtopdd(s,se,x) strtordd(s,se,1,x)
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#define strtopf(s,se,x) strtorf(s,se,1,x)
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#define strtopQ(s,se,x) strtorQ(s,se,1,x)
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#define strtopx(s,se,x) strtorx(s,se,1,x)
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#define strtopxL(s,se,x) strtorxL(s,se,1,x)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* GDTOA_H_INCLUDED */
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